kicad/eeschema/sim/sim_value.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2022 Mikolaj Wielgus
* Copyright (C) 2022 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* https://www.gnu.org/licenses/gpl-3.0.html
* or you may search the http://www.gnu.org website for the version 3 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef SIM_VALUE_H
#define SIM_VALUE_H
#include <wx/string.h>
#include <optional>
#include <complex>
#include <memory>
#include <pegtl.hpp>
namespace SIM_VALUE_GRAMMAR
{
using namespace tao::pegtl;
enum class NOTATION
{
SI,
SPICE
};
}
class SIM_VALUE
{
public:
using NOTATION = SIM_VALUE_GRAMMAR::NOTATION;
// Names like BOOL, INT, FLOAT need to be prefixed or MS Windows compilers will complain (enum
// class doesn't help).
enum TYPE
{
TYPE_BOOL,
TYPE_INT,
TYPE_FLOAT,
TYPE_COMPLEX,
TYPE_STRING,
TYPE_BOOL_VECTOR,
TYPE_INT_VECTOR,
TYPE_FLOAT_VECTOR,
TYPE_COMPLEX_VECTOR
};
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static std::unique_ptr<SIM_VALUE> Create( TYPE aType, std::string aString,
NOTATION aNotation = NOTATION::SI );
static std::unique_ptr<SIM_VALUE> Create( TYPE aType );
virtual ~SIM_VALUE() = default;
SIM_VALUE() = default;
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virtual TYPE GetType() const = 0;
virtual bool HasValue() const = 0;
void operator=( const std::string& aString );
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virtual void operator=( const SIM_VALUE& aValue ) = 0;
virtual bool operator==( const SIM_VALUE& aOther ) const = 0;
bool operator!=( const SIM_VALUE& aOther ) const;
virtual bool FromString( const std::string& aString, NOTATION aNotation = NOTATION::SI ) = 0;
virtual std::string ToString( NOTATION aNotation = NOTATION::SI ) const = 0;
std::string ToSpiceString() const { return ToString( NOTATION::SPICE ); }
// For parsers that don't accept strings with our suffixes.
virtual std::string ToSimpleString() const = 0;
};
template <typename T>
class SIM_VALUE_INST : public SIM_VALUE
{
public:
SIM_VALUE_INST() = default;
SIM_VALUE_INST( const T& aValue );
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TYPE GetType() const override;
bool HasValue() const override;
// TODO: Don't pass aNotation. Make a FromSpiceString() function instead.
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// TODO: Don't use FromString(). Use assignment. Values should be immutable.
bool FromString( const std::string& aString, NOTATION aNotation = NOTATION::SI ) override;
std::string ToString( NOTATION aNotation = NOTATION::SI ) const override;
std::string ToSimpleString() const override;
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void operator=( const SIM_VALUE& aOther ) override;
void operator=( const T& aValue );
bool operator==( const T& aOther ) const;
bool operator==( const SIM_VALUE& aOther ) const override;
template <typename Type>
friend SIM_VALUE_INST<Type> operator+( const SIM_VALUE_INST<Type>& aLeft,
const SIM_VALUE_INST<Type>& aRight );
template <typename Type>
friend SIM_VALUE_INST<Type> operator-( const SIM_VALUE_INST<Type>& aLeft,
const SIM_VALUE_INST<Type>& aRight );
template <typename Type>
friend SIM_VALUE_INST<Type> operator*( const SIM_VALUE_INST<Type>& aLeft,
const SIM_VALUE_INST<Type>& aRight );
template <typename Type>
friend SIM_VALUE_INST<Type> operator/( const SIM_VALUE_INST<Type>& aLeft,
const SIM_VALUE_INST<Type>& aRight );
std::optional<T> Get() { return m_value; };
private:
std::string getMetricSuffix();
std::optional<T> m_value = std::nullopt;
};
typedef SIM_VALUE_INST<bool> SIM_VALUE_BOOL;
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typedef SIM_VALUE_INST<int> SIM_VALUE_INT;
typedef SIM_VALUE_INST<double> SIM_VALUE_FLOAT;
typedef SIM_VALUE_INST<std::complex<double>> SIM_VALUE_COMPLEX;
typedef SIM_VALUE_INST<std::string> SIM_VALUE_STRING;
namespace SIM_VALUE_GRAMMAR
{
template <NOTATION Notation>
std::string allowedIntChars;
struct digits : plus<tao::pegtl::digit> {}; // For some reason it fails on just "digit".
struct sign : one<'+', '-'> {};
struct intPart : seq<opt<sign>, digits> {};
//struct fracPartPrefix : one<'.'> {};
struct fracPart : digits {};
//struct fracPartWithPrefix : seq<fracPartPrefix, fracPart> {};
template <SIM_VALUE::TYPE ValueType>
struct significand;
template <> struct significand<SIM_VALUE::TYPE_FLOAT> :
sor<seq<intPart, one<'.'>, fracPart>,
seq<intPart, one<'.'>>,
intPart,
seq<one<'.'>, fracPart>,
one<'.'>,
one<'-'>> {};
template <> struct significand<SIM_VALUE::TYPE_INT> : intPart {};
struct exponentPrefix : one<'e', 'E'> {};
struct exponent : seq<opt<sign>, opt<digits>> {};
struct exponentWithPrefix : seq<exponentPrefix, exponent> {};
template <SIM_VALUE::TYPE ValueType, NOTATION Notation>
struct metricSuffix;
template <> struct metricSuffix<SIM_VALUE::TYPE_INT, NOTATION::SI>
: one<'k', 'K', 'M', 'G', 'T', 'P', 'E'> {};
template <> struct metricSuffix<SIM_VALUE::TYPE_INT, NOTATION::SPICE>
: sor<TAO_PEGTL_ISTRING( "k" ),
TAO_PEGTL_ISTRING( "Meg" ),
TAO_PEGTL_ISTRING( "G" ),
TAO_PEGTL_ISTRING( "T" )> {};
template <> struct metricSuffix<SIM_VALUE::TYPE_FLOAT, NOTATION::SI>
: one<'a', 'f', 'p', 'n', 'u', 'm', 'k', 'K', 'M', 'G', 'T', 'P', 'E'> {};
template <> struct metricSuffix<SIM_VALUE::TYPE_FLOAT, NOTATION::SPICE>
: sor<TAO_PEGTL_ISTRING( "f" ),
TAO_PEGTL_ISTRING( "p" ),
TAO_PEGTL_ISTRING( "n" ),
TAO_PEGTL_ISTRING( "u" ),
TAO_PEGTL_ISTRING( "Meg" ), // "Meg" must be before "m".
TAO_PEGTL_ISTRING( "m" ),
//TAO_PEGTL_ISTRING( "mil" ),
TAO_PEGTL_ISTRING( "k" ),
TAO_PEGTL_ISTRING( "G" ),
TAO_PEGTL_ISTRING( "T" )> {};
template <NOTATION Notation>
struct garbageSuffix;
template <> struct garbageSuffix<NOTATION::SI> : seq<> {};
template <> struct garbageSuffix<NOTATION::SPICE> : star<alpha> {};
template <SIM_VALUE::TYPE ValueType, NOTATION Notation>
struct number : seq<opt<significand<ValueType>>,
opt<exponentWithPrefix>,
opt<metricSuffix<ValueType, Notation>>,
garbageSuffix<Notation>> {};
template <SIM_VALUE::TYPE ValueType, NOTATION Notation>
struct numberGrammar : must<number<ValueType, Notation>, tao::pegtl::eof> {};
bool IsValid( const std::string& aString,
SIM_VALUE::TYPE aValueType = SIM_VALUE::TYPE_FLOAT,
NOTATION aNotation = NOTATION::SI );
}
#endif // SIM_VALUE_H